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The lpGBT production testing system
/ Guettouche, N (CERN) ; Baron, S (CERN) ; Biereigel, S (CERN) ; Hernandez Montesinos, D (CERN) ; Kulis, S (CERN) ; Vicente Leitao, P (CERN) ; Mendez, J (CERN) ; Moreira, P (CERN) ; Porret, D (CERN) ; Wyllie, K (CERN)
The Low Power GigaBit Transceiver (lpGBT) is a radiation-tolerant Application-Specific Integrated Circuit (ASIC) designed to implement versatile high-speed bi-directional serial links in the experiments and environment of the Large Hadron Collider. With 336 programmable registers and 11 configuration pins, this ASIC is highly configurable. [...]
2022 - 7 p.
- Published in : JINST 17 (2022) C03040
In : TWEPP 2021 Topical Workshop on Electronics for Particle Physics, Online, Online, 20 - 24 Sep 2021, pp.C03040
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The lpGBT PLL and CDR Architecture, Performance and SEE Robustness
/ Biereigel, Stefan (Brandenburg Tech. U. ; Leuven U. ; CERN) ; Kulis, Szymon (CERN) ; Francisco, Rui (CERN) ; Leitao, Pedro Vicente (CERN) ; Leroux, Paul (Leuven U.) ; Moreira, Paulo (CERN) ; Prinzie, Jeffrey (Leuven U.)
We present the design, architecture and experimental results of the low jitter Clock and Data Recovery (CDR) and Phase Locked Loop (PLL) circuit in the Low-Power Gigabit Transceiver (lpGBT) ASIC. This circuit includes a low noise radiation-tolerant integrated LC-oscillator with a nominal frequency of 5.12 GHz to support a 10.24 Gbps uplink and a 2.56 Gbps downlink CDR. [...]
SISSA, 2020 - 5 p.
- Published in : PoS TWEPP2019 (2020) 034
Fulltext: PDF;
In : TWEPP 2019 Topical Workshop on Electronics for Particle Physics, Santiago De Compostela, Spain, 2 - 6 Sep 2019, pp.034
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Overview of the production and qualification tests of the lpGBT
/ Hernandez Montesinos, D (CERN) ; Baron, S (CERN) ; Biereigel, S (CERN) ; Hazell, P (CERN) ; Kulis, S (CERN) ; Vicente Leitao, P (CERN) ; Moreira, P (CERN) ; Porret, D (CERN) ; Wyllie, K (CERN)
The Low-Power Gigabit Transceiver (lpGBT) is a radiation-tolerant ASIC used in high-energy physics experiments for multipurpose high-speed bidirectional serial links. Around 200,000 chips have been tested with a production test system capable of exercising the majority of the ASIC functionality to ensure its correct operation.Furthermore, specific individual qualification tests were carried out beyond the production tester limits, including radiation, multi-drop bus topology, inter-chip communication through different types of electrical links and characterization of jitter and stability of the recovered clocks.In this article, an overview of the production and qualification tests is given together with their results demonstrating the robustness and flexibility of the lpGBT..
2024 - 8 p.
- Published in : JINST
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2023 (TWEPP 2023), Geremeas, Sardinia, Italy, 1 - 6 Oct 2023, pp.C04048
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Source Switched Charge-Pump PLLs for High-Dose Radiation Environments
/ Prinzie, Jeffrey (Leuven U.) ; Biereigel, Stefan (CERN) ; Kulis, Szymon (CERN) ; Leitao, Pedro (CERN) ; Moreira, Paulo (CERN)
This article presents a radiation tolerant charge-pump phase-locked loop (PLL) with low static phase error variability suitable for high-performance clock systems in high-dose radiation environments. We investigate the use of source switching charge-pump architectures to minimize any voltage- or dose-dependent charge injection and address the limitations of enclosed layout transistors (ELTs) in the conventional drain switched charge-pump. [...]
2023 - 6 p.
- Published in : IEEE Trans. Nucl. Sci. 70 (2023) 590-595
In : 2022 IEEE Nuclear and Space Radiation Effects Conference, Provo, Utah, USA, 18 - 23 Jul 2022, pp.590-595
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Development of a Stitched Monolithic Pixel Sensor prototype (MOSS chip) towards the ITS3 upgrade of the ALICE Inner Tracking system
/ Vicente Leitao, P (CERN) ; Aglieri Rinella, G (CERN) ; Bugiel, S (Strasbourg, IPHC) ; Cecconi, L (CERN) ; de Melo, J L A (CERN) ; De Robertis, G (INFN, Bari ; Bari U.) ; Deng, W (CERN ; Hua-Zhong Normal U.) ; Dorda Martin, A (CERN ; KIT, Karlsruhe) ; Dorosz, P (CERN) ; Fang, X (Strasbourg, IPHC) et al.
The MOnolithic Stitched Sensor (MOSS) is a development prototype chip towards the ITS3 vertexing detector for the ALICE experiment at the LHC. Designed using a 65 nm CMOS Imaging technology, it aims at profiting from the stitching technique to construct a single-die monolithic pixel detector of 1.4 cm × 26 cm. [...]
2023 - 8 p.
- Published in : JINST 18 (2023) C01044
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C01044
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A radiation tolerant clock generator for the CMS Endcap Timing Layer readout chip
/ Sun, H. (Southern Methodist U. ; Hua-Zhong Normal U.) ; Sun, Q. (Fermilab) ; Biereigel, S. (CERN ; Leuven U.) ; Francisco, R. (CERN) ; Gong, D. (Southern Methodist U.) ; Huang, G. (Hua-Zhong Normal U.) ; Huang, X. (Southern Methodist U.) ; Kulis, S. (CERN) ; Leroux, P. (Leuven U.) ; Liu, C. (Southern Methodist U.) et al.
We present the test results of a low jitter Phase Locked Loop (PLL) prototype chip for the CMS Endcap Timing Layer readout chip (ETROC). This chip is based on the improved version of a clock synthesis circuit named ljCDR from the Low-Power Gigabit Transceiver (lpGBT) project. [...]
arXiv:2110.12625; FERMILAB-CONF-21-633-PPD.-
2022-03-23 - 6 p.
- Published in : 10.1088/1748-0221/17/03/C03038
Fulltext: 2b8e809fdbeb999e8d3e2f1ac77fa465 - PDF; fermilab-conf-21-633-ppd - PDF; 2110.12625 - PDF; External link: Fermilab Accepted Manuscript
In : TWEPP 2021 Topical Workshop on Electronics for Particle Physics, Online, Online, 20 - 24 Sep 2021, pp.C03038
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